Cache – Build Information – Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build Cache, reference 0.1.0 (d21618), with Swift 6.1 for macOS (Xcode) using Xcode 16.3 on 26 Apr 2025 23:30:16 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -destination platform=macOS,arch=arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/binaryscraping/swift-cache.git
Reference: 0.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/binaryscraping/swift-cache
 * tag               0.1.0      -> FETCH_HEAD
HEAD is now at d216188 Add 'Usage in tests' section to README
Cloned https://github.com/binaryscraping/swift-cache.git
Revision (git rev-parse @):
d216188b341a150bf7a1caded909b4b7c1fd7cdf
SUCCESS checkout https://github.com/binaryscraping/swift-cache.git at 0.1.0
========================================
Build
========================================
Selected platform:         macosXcodebuild
Swift version:             6.1
Building package at path:  $PWD
https://github.com/binaryscraping/swift-cache.git
https://github.com/binaryscraping/swift-cache.git
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/pointfreeco/xctest-dynamic-overlay (cached)
Creating working copy of package ‘xctest-dynamic-overlay’
Checking out 0.9.0 of package ‘xctest-dynamic-overlay’
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
resolved source packages: xctest-dynamic-overlay, Cache
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Cache"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -destination platform=macOS,arch=arm64 OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Cache -destination platform=macOS,arch=arm64 "OTHER_SWIFT_FLAGS=-stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures"
Build settings from command line:
    OTHER_SWIFT_FLAGS = -stats-output-dir .stats -strict-concurrency=complete -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  Cache: /Users/admin/builder/spi-builder-workspace
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: b78236f6a3f84b50de04bd5ed3693358
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/b78236f6a3f84b50de04bd5ed3693358.xcbuilddata
error: The package product 'XCTestDynamicOverlay' requires minimum platform version 10.15 for the macOS platform, but this target supports 10.13 (in target 'Cache' from project 'Cache')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Cache
(1 failure)
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
  Cache: /Users/admin/builder/spi-builder-workspace
resolved source packages: xctest-dynamic-overlay, Cache
{
  "dependencies" : [
    {
      "identity" : "xctest-dynamic-overlay",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "0.2.1",
            "upper_bound" : "1.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/pointfreeco/xctest-dynamic-overlay"
    }
  ],
  "manifest_display_name" : "Cache",
  "name" : "Cache",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Cache",
      "targets" : [
        "Cache"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CacheTests",
      "module_type" : "SwiftTarget",
      "name" : "CacheTests",
      "path" : "Tests/CacheTests",
      "sources" : [
        "CacheTests.swift"
      ],
      "target_dependencies" : [
        "Cache"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Cache",
      "module_type" : "SwiftTarget",
      "name" : "Cache",
      "path" : "Sources/Cache",
      "product_dependencies" : [
        "XCTestDynamicOverlay"
      ],
      "product_memberships" : [
        "Cache"
      ],
      "sources" : [
        "Cache.swift",
        "Live.swift",
        "Mock.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.6"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "Cache"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Cache -destination platform=macOS,arch=arm64
Command line invocation:
    /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Cache -destination platform=macOS,arch=arm64
Resolve Package Graph
Resolved source packages:
  Cache: /Users/admin/builder/spi-builder-workspace
  xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 0.9.0
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (4 targets)
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'Cache' in project 'Cache'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
        ➜ Explicit dependency on target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay'
    Target 'XCTestDynamicOverlay' in project 'xctest-dynamic-overlay' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.3.0.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
ReadFileContents /Applications/Xcode-16.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/share/docc/features.json
Build description signature: 12ae788d5dac17bb64b92b75b20dab8a
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/12ae788d5dac17bb64b92b75b20dab8a.xcbuilddata
error: The package product 'XCTestDynamicOverlay' requires minimum platform version 10.15 for the macOS platform, but this target supports 10.13 (in target 'Cache' from project 'Cache')
--- xcodebuild: WARNING: Using the first of multiple matching destinations:
{ platform:macOS, arch:arm64, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:Mac Catalyst, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:DriverKit, id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:db29fc67120b2101d962c27436b60b9f1ee3c7ae, name:My Mac }
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme Cache
(1 failure)
BUILD FAILURE 6.1 macosXcodebuild